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SEC Form 3 Initial Beneficial Ownership Holdings
SEC Form 3 Initial Beneficial Ownership Holdings is a paid API for AI agents from agents.x402stock.xyz, paid per call via MPP, $0.02/call, status unknown (last checked 2026-09-12).
Returns parsed initial beneficial-ownership holdings from SEC Form 3 filings for a given US stock ticker, showing what insiders owned when they first became directors, officers, or 10%+ holders.
Price / call$0.02
Success—
StatusUnknown
How this service works
Initial beneficial-ownership holdings parsed from SEC Form 3 filings, the first report an insider files on becoming a director, officer, or 10% holder. Each holding carries the security, shares owned, direct or indirect ownership, and derivative terms. Complements Form 4 transactions. ?limit= filings (default 5). Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).
Output
A JSON object containing the ticker, source (sec_edgar), timestamp, and a data block with: number of filings parsed, total holding count, and an array of holdings. Each holding includes owner name, role flags (director/officer/10% owner), officer title, filing date, accession number, SEC URL, security name, share count, direct/indirect ownership indicator, nature of ownership, and derivative details (is_derivative, exercise price, exercise date, expiration date, underlying security and shares).
Example use cases
Vetting new board member ownership
“I just heard that Apple added a new board member — can you pull their initial SEC Form 3 filing for AAPL and tell me what securities they reported owning when they joined?”
Screening for large initial insider stakes
“Check the last 25 Form 3 filings for NVDA and flag any insiders who came in as 10% holders or reported owning more than a million shares initially.”
Derivative holdings at time of appointment
“For META, show me any Form 3 filings where new officers reported derivative holdings — I want to see the exercise prices and expiration dates on anything like options or warrants they disclosed initially.”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/form-3/{ticker}When to prefer
Use this endpoint when you need to understand what insiders owned at the moment they first became reportable insiders (directors, officers, or 10%+ holders) for a US-listed stock. It is distinct from Form 4 endpoints (which cover ongoing transactions) and provides the baseline ownership snapshot. Prefer this when researching insider composition, initial equity stakes, or derivative grant details at appointment time.
Side effects
- Unknown or invalid ticker returns empty data array
- Ticker with no Form 3 filings on EDGAR returns zero holdings
- Limit parameter out of range (>25 or <=0) returns validation error
- Network or EDGAR upstream outage may cause timeout or 5xx error
- Payment failure via x402/USDC results in 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | |
| tickerrequired | string | US-listed ticker symbol (uppercase), e.g. AAPL. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object | |
| as_ofrequired | — | |
| sourcerequired | string | |
| tickerrequired | string |
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